**Public Class Plan220219_class {**

Public Summary1[] Summaries1 {get; set;}
Public Summary2[] Summaries2 {get; set;}
Public Summary3[] Summaries3 {get; set;}

Public Plan220219_class() {

agg1();

agg2();

agg3();

}

public void agg1() {
AggregateResult[] results1 = [SELECT COUNT(OwnerId) CountAcc, Id FROM Account GROUP BY Id];
    Summaries1 = new List<Summary1>();
    FOR(AggregateResult ar1 : results1) {
        Summaries1.add(new Summary1(ar1));
    }
}

public void agg2() {
AggregateResult[] results2 = [SELECT COUNT(Id) CountSales, SUM(Sales_amount__c) Sales_amount, contract2__r.contract1__r.account__r.Id FROM Sales__c GROUP BY contract2__r.contract1__r.account__r.Id];
    Summaries2 = new List<Summary2>();
    FOR(AggregateResult ar2 : results2) {
        Summaries2.add(new Summary2(ar2));
    }
}

public void agg3() {
AggregateResult[] results3 = [SELECT SUM(Amount) Opp_Amount, Account.Id FROM Opportunity GROUP BY Account.Id];
    Summaries3 = new List<Summary3>();
    FOR(AggregateResult ar3 : results3) {
        Summaries3.add(new Summary3(ar3));
    }
}

public class summary1 {
    public Integer CountAcc {get; set;}
    public Id UId {get; set;}

public summary1 (AggregateResult ar1) {
    CountAcc = (Integer) ar1.get('CountAcc');
    UId = (Id) ar1.get('Id');
    }
}

public class summary2 {
    public Integer CountSales {get; set;}
    public Double Sales_Amount {get; set;}
    public Id UId {get; set;}

public summary2 (AggregateResult ar2) {
    CountSales = (Integer) ar2.get('CountSales');
    Sales_Amount = (Double) ar2.get('Sales_amouont');
    UId = (Id) ar2.get('Id');
    }
}

public class summary3 {
    public Double Opp_Amount {get; set;}
    public Id UId {get; set;}

public summary3 (AggregateResult ar3) {
    Opp_Amount = (Double) ar3.get('Opp_Amount');
    UId = (Id) ar3.get('Id');
    }
}

}


**<apex:page controller="Plan220219_class">**

<apex:repeat value="{!Summaries1}" var="summary1">
    {!summary1.UId} : {!summary1.CountAcc} <br/>
</apex:repeat>

<br/>

<apex:repeat value="{!Summaries2}" var="summary2">
    {!summary2.UId} : {!summary2.CountSales} : {!summary2.Brutto_BWS} <br/>
</apex:repeat>

<br/>

<apex:repeat value="{!Summaries3}" var="summary3">
    {!summary3.UId} : {!summary3.OPP_Amount} <br/>
</apex:repeat>

</apex:page>